I stopped in to two Target stores today and was pleased to see some P case hitting. The first stop had leftovers, but I picked up a good handful of the new P case cars. On a hunch, I headed to the next closest Target to see if they had the same. After a quick scan of the pegs, I had the associate scan and found that they had 84 in back. 84 = a sidekick shipper. He went to get it and we unboxed it fresh. 
Score! I went through everything and pegged it for the associate. I was able to find the rest of the P case that I needed, and strangely the shipper had G and H case cars. No treasure hunts in the shipper, which was disappointing.
Between both stores this is what I pulled:
I picked up the extra H case reds and the naked Mazda error but I may not keep them. Overall it was a good haul.
